I recently installed Team Fortress 2 and Steam since it is now free-to-play and my sound is all messed up. I had games like A.V.A and Sudden Attack and all system sounds, game sounds, and skype voice calls went through the speakers with no problem.

Now everything is messed up. Only thing that goes through the headphones now is voice calls (skype and/or steam voice chat) and that is it if the game is running. If the game is running, system sounds, game sounds, and other things like youtube videos sound goes through the speaker instead of headphones. This happens to all games now like Sudden Attack and A.V.A.

The game sounds and system sounds go through the headphones when I don't do voice chat with skype/steam but when I do voice chat, the game sounds and system sound go through the speakers while the voice sounds go through the headphones.

need to bump this because I am about to give up with steams voice chat lol ... everything works but incoming voice chat comes through the speakers not headset ! Also when I test my headset with "steam settings" my voice comes through my headset like it's supposed to

all other apps on my PC have Zero issues !! Come on steam get your act together .

Sorry for necro-posting, but I had this problem in the past but do not remember how I solved it. However, I am absolutely sure that the problem lies with Dell IDT audio since I had fixed this problem by disabling it or installing another driver.